1. GERRHOSAURUS.

Wiegm. Isis, 1828, p. 378; Bouleng. Cat. Liz. iii. p. 120.

Six Species in South Africa.

I. Ventral shields in 14 or 16 longitudinal series; tympanic

shield large, crescentic; 18 to 21 femoral pores on each side G. validus. II. Ventral shields in 10 longitudinal series; frontonasal usually in contact with the rostral.

Tympanic shield narrow; 12 or 13 femoral pores on each side..
Tympanic shield large, crescentic; dorsal shields unicarinate;
15 to 18 femoral pores on each side..

III. Ventral shields in 8 longitudinal series; nasals usually in
contact with each other behind the rostral.
Tympanic shield large, crescentic; head (measured to ear) 4 to
5 times in length from snout to vent; 14 to 18 femoral pores on
each side

Tympanic shield narrow; head 4 to 5 times in length from
snout to vent in adult; præfrontals forming a long median
suture; 14 to 20 femoral pores on each side..

Tympanic shield narrow; head 5 to 6 times in length from snout to vent in adult; frontonasal usually in contact with frontal, or præfrontals forming a short suture; 10 to 15 femoral pores on each side

G. grandis.

G. typicus.

G. auritus.

G. nigrolineatus.

G. Alavigularis.

1. GERRHOSAURUS VALIDUS, Smith, Ill., Rept., App. p. 9; Bouleng., t.c., p. 121.

Transvaal, Rhodesia, Portuguese East Africa, Angola.

2. GERRHOSAURUS GRANDIS, Bouleng. Ann. Natal Mus. i., 1908, p. 233, pl. xxxvi.

Zululand.

3. GERRHOSAURUS TYPICUS, Smith, Mag. Zool. i., 1837, p. 143; Bouleng., t.c., p. 123.

North-western parts of Cape Colony.

Little Namaqualand (Péringuey).

4. GERRHOSAURUS AURITUS, Boettg. Ber. Senck. Ges., 1886-87, p. 148, pl. v. fig. 3.

Kalahari, Ovamboland, Angola.

5. GERRHOSAURUS NIGROLINEATUS, Hallow. Proc. Ac. Philad., 1857, p. 49; Bouleng., t.c., p. 122.

Kalahari, Southern Rhodesia, Angola to Gaboon and Uganda. Southern Rhodesia: Hunyani River (Thomas); Victoria Falls (Kirkman).

6. GERRHOSAURUS

FLAVIGULARIS, Wiegm. Isis, 1828, p. 379;

Bouleng., t.c., p. 122.

Cape Colony, Natal, Zululand, Orange River Colony, Transvaal, Rhodesia, East Africa to Abyssinia.

Cape Colony Cape Town (De Souza); Knysna (Maritz); Port Alfred (Becker); Transkei (Bowker); Port St. Johns (Shortridge); Robertson (Melle); Port Elizabeth (Moorhouse); Serowe, Bechuanaland (Blackbeard).

Transvaal: Johannesburg (Ross).

Southern Rhodesia: Mazoe, Mashonaland (ff. Darling).

2. TETRADACTYLUS.

Merrem, Tent. Syst. Amph. p. 75; Bouleng. Cat. Liz. iii. p. 124.

Cape Colony Cape Town (De Souza); Robben Island (Oakley); Knysna (Maritz); Paarl Division (Du Plessis).

2. TETRADACTYLUS TETRADACTYLUS.

Lacerta tetradactyla, Lacep. Ann. Mus. ii., 1803, p. 351.
Tetradactylus tetradactylus, Bouleng., t.c., p. 125.

Cape Colony.

Cape Colony Cape Division (Purcell); Robertson (Melle); Worcester Division (R. Franke); Namaqualand (?)

3. TETRADACTYLUS BREYERI, Roux, Zool. Jahrb., Syst. xxv., 1907, p. 430, pl. xiv. fig. 6.

Transvaal.

4. TETRADACTYLUS AFRICANUS.

Caitia africana, Gray, Ann. N. H. i., 1838, p. 389.

Tetradactylus africanus, Bouleng., t.c., p. 125.

Northern and eastern parts of Cape Colony, Natal, Zululand,

Angola.

Cape Colony: Little Namaqualand (Péringuey).

Natal Durban (Bowker); Umvoti (Fry).

3. CORDYLOSAURUS.

Gray, P.Z.S., 1865, p. 641; Bouleng. Cat. Liz. iii. p. 126.

Two Species, which may have to be united.

Dorsal shields feebly or more or less strongly keeled
Dorsal shields nearly smooth ..

1. CORDYLOSAURUS TRIVITTATUS.

C. trivittatus.

C. subtessellatus.

Gerrhosaurus trivittatus, Peters, Mon. Berl. Ac., 1862, p. 18.
Cordylosaurus trivittatus, Bouleng., l.c.

Northern parts of Cape Colony and German South-West Africa. Cape Colony: Little Namaqualand (Scully); Clanwilliam Division (Schlechter); Calvinia Division (Schlechter).

2. CORDYLOSAURUS SUBTESSELLATUS.

Gerrhosaurus subtessellatus, Smith, Ill., Rept. pl. xli. fig. 2.
Cordylosaurus subtessellatus, Bouleng., l.c.

Great Namaqualand.

Loc. (?) No history.

FAMILY SCINCIDE.

Dentition

Tongue moderately long, with scale-like papillæ. pleurodont. Upper surface of head with large symmetrical shields. Body with imbricate scales over bony plates. No femoral pores. This family includes the Anelytropidæ.

Eight Genera in South Africa.

I. Nostril in a small or moderate-sized nasal, well separated from the rostral; præfrontals and frontoparietals present. Movable eyelids, the lower with a transparent disk; scales tri- or quinque carinate

Movable eyelids, the lower scaly; limbs short; scales smooth or feebly tricarinate

..

No movable eyelids; scales smooth

Mabuia.

Lygosoma.
Ablepharus.

II. Nostril pierced between the rostral and a very small nasal, which may be reduced to a narrow ring; scales smooth; limbs weak or absent; præfrontals and frontoparietals very small or absent.

First upper labial not entering the nostril; palatine bones meeting on the middle line ..

First upper labial not entering the nostril; palatine bones not meeting on the middle line..

First upper labial entering the nostril; palatine bones not meeting on the middle line ..

III. Nostril pierced in the anterior part of the very large rostral, with the posterior border of which it is connected by a longitudinal cleft; scales smooth; limbs absent.

Scelotes.

Herpetosaura.

Sepsina.

Eye very small, with lower lid

Eye concealed under the shields

1. MABUIA.

..

Acontias.
Typhlosaurus.

Fitzing. N. Class. Rept. p. 23; Bouleng. Cat. Liz. iii. p. 150.

Synopsis of the South African Species.

I. Subdigital lamellæ and scales on soles smooth or tubercularly keeled.

A. 28 to 32 scales round the body; anterior border of ear with 2 or 3 long pointed lobules.

Frontonasal in contact with frontal; a light lateral streak, passing through the ear

Fræfrontals usually forming a median suture; no light lateral streak

....

B. 34 or 36 scales round the body; anterior border of ear with 3 short rounded lobules ..

....

II. Subdigital lamellæ keeled; scales on soles often keeled or spinose, especially in the young.

A. Subocular not narrowed inferiorly, similar in shape to the upper labials.

Snout pointed; 36 to 44 scales round the body; ear-opening with 3 to 5 short obtusely pointed lobules anteriorly

Snout very obtuse; 30 to 36 scales round the body; scales on anterior border of ear not differentiated

Snout very obtuse; 30 or 32 scales round the body; 2 or 3 large projecting auricular lobules

..

B. Subocular narrowed inferiorly, or not reaching the lip.
1. Snout normal.

a. Ear-opening partly concealed under long pointed
lobules; lower border of subocular usually more
than one-third the length of the upper; 30 to
34 scales round the body.

Hind limb not reaching the axil; a light lateral streak passing
through the ear
Hind limb reaching the axil..

b. Ear-opening largely exposed, ear-lobules very short; lower border of subocular, if reaching the lip, not more than one-third the length of the upper; 32 to 40 scales round the body. Scales mostly tricarinate, sometimes quinquecarinate; a more or less distinct light lateral band, proceeding from above the

eye

Scales quinquecarinate; head and body remarkably depressed;
brown above, uniform or spotted with black, uniform black,
or light with six dark longitudinal bands ..

2. Snout much depressed, with deeply concave sides,
sharp canthus rostralis, and angularly projecting
upper labials; ear-lobules long; 28 to 32 scales
round the body ..

M. homalocephala.

M. peringueyi.

M. gruetzneri.

M. quinquetaniata.

M. trivittata.

M. occidentalis.

M. varia.

M. hildebrandti.

M. striata.

MI. sulcata.

M. acutilabris.

1. MABUIA HOMALOCEPHALA.

Euprepes homalocephalus, Wiegm. Isis, 1828, p. 374.

Mabuia homalocephala, Bouleng. Cat. Liz. iii. p. 170.

Cape Colony, Natal, Zululand, Transvaal, Southern Rhodesia. Cape Colony: Cape Division (De Souza, French); Robben Island (Oakley); Knysna (Moritz); Bredasdorp (Fry); Little Namaqualand (Péringuey).

Natal: Pinetown (Bowker).

Transvaal Johannesburg (Cregoe).

2. MABUIA PERINGUEYI, Bouleng. Ann. & Mag. N. H. (6) ii., 1888, p. 139.

Little Namaqualand, German South-West Africa.

Cape Colony Little Namaqualand (Péringuey).
German South-West Africa: Damaraland (Marloth).

3. MABUIA GRUETZNERI.

Euprepes gruetzneri, Peters, Mon. Berl. Ac., 1869, p. 433.
Mabuia gruetzneri, Bouleng. Cat. Liz. iii. p. 171.
Portuguese East Africa.

4. MABUIA QUINQUETENIATA.

Scincus quinquetaeniatus, Lichtenst. Verz. Doubl. Mus. Berl. p. 103.

Mabuia quinquetaniata, Bouleng. Cat. Liz. iii. p. 198.

Egypt and Arabia to Southern Rhodesia and Zululand.

Southern Rhodesia: Matoppo Hills (Pillans); Hunyani River (Thomas).

5. MABUIA TRIVITTATA.

Scincus trivittatus, Cuv. R. An., 2nd ed. ii. p. 62.

Mabuia trivittata, Bouleng. Cat. Liz. iii. p. 195.

Mabuia calaharica, Werner, Jen. Zeitschr. xvi., 1910, p. 350, pl. viii. fig. 11.

Cape Colony, Natal, Orange River Colony, Transvaal, German South-West Africa, Southern Rhodesia.

Cape Colony Cape Division (Butler, Oakley, Picton); Worcester Division (Purcell); Calvinia (Leipoldt); King William's Town (Sclater); George (Leipoldt); Caledon Division (Burges); Robertson (Melle); Mount Ayliff (Weisbecker); Burghersdorp (Kannemeyer); Little Namaqualand (Péringuey, Warden, Turle, Schlechter).

Natal Durban (Bowker).